I've looked around and found nothing. I'm not sure of the actual specs for the K20C2 cams and such because I was thinking of swapping a bigger cam into this engine. There is one aftermarket cams that supposedly fits our engines but I called up and they said they can't confirm that it does indeed fit. It's also $1,000+ so I'm not in a rush to be disappointed if they don't fit. A lot of supporting mods would have to be done to safely do it anyhow. They were called BMF cams or something from Skunk2.
I bought used k20a2 cams with accompanying OEM valves springs, retainers, and head studs for a pretty good price. I don't know what the lift profiles are for our K20C2 cams either, but if they are significantly different from the stock k20a2, then replacing the springs is probably worthwhile. That said, I would be incredibly grateful for any advice regarding other modifications that one might need to make to accommodate these or similar camshafts!
